<template>
  <div class="login_container">
    <div class="login_box">
      <!--头像区-->
      <div class="avatar_box">
        <img src="../../assets/logo.png" alt="">
      </div>
      <!--表单区-->
      <el-form ref="loginFormRef" :model="loginFrom" :rules="loginFromRules" label-width="0px" class="login_form">
        <!--用户名-->
        <el-form-item prop="username">
          <el-input v-model="loginFrom.username" prefix-icon="iconfont icon-user"/>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input v-model="loginFrom.password" prefix-icon="iconfont icon-3702mima" show-password/>
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import {loginRequest} from "../../network/login";

export default {
  data() {
    return {
      //登录表单的数据对象
      loginFrom: {
        username: '',
        password: ''
      },
      //表单验证规则对象
      loginFromRules: {
        //验证用户名
        username: [
          //验证为必填项
          {required: true, message: '请输入用户名', trigger: 'blur'},
          //验证长度
          {min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur'}
        ],
        //验证密码
        password: [
          //验证为必填项
          {required: true, message: '请输入密码', trigger: 'blur'},
          //验证长度
          {min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur'}
        ]
      }
    }
  },
  methods: {
    //点击重置表单
    resetLoginForm() {
      this.$refs.loginFormRef.resetFields()
    },
    //登录验证
    login() {
      this.$refs.loginFormRef.validate(valid => {
        //valid 是验证结果
        //console.log(valid)
        if (!valid) return
        loginRequest(this.loginFrom).then(res => {
          if (res['meta'].status !== 200) return this.$message.error('登录失败')
          this.$message.success('登陆成功')
          // 保存token
          window.sessionStorage.setItem('token', res.data.token)
          // 路由跳转
          this.$router.push('/home')
        }).catch(err => {
          this.$message.error('登录失败')
          console.log(err)
        })
      })
    }
  }
}
</script>

<style lang="less" scoped>

.login_container {
  height: 100%;
  background-color: #2b4b6b;
}

.login_box {
  width: 450px;
  height: 300px;
  background-color: #fff;
  border-radius: 3px;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.avatar_box {
  position: absolute;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 130px;
  height: 130px;
  padding: 10px;
  border: 1px solid #eee;
  border-radius: 50%;
  box-shadow: 0 0 10px #ddd;
  background-color: #fff;

  img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    background-color: #eee;
  }
}

.btns {
  display: flex;
  justify-content: flex-end;
}

.login_form {
  position: absolute;
  bottom: 0;
  box-sizing: border-box;
  padding: 0 20px;
  width: 100%;
}
</style>